ihumate brand potassium humate granules, displayed in a bowl, granules black bright and full
ihumate potassium humate granules front view, showing its regular round shape
ihumate various specifications packaging, export-grade potassium humate granules
ihumate potassium humate granules particle size comparison chart, with ruler marking, uniform particle size
ihumate potassium humate granules water solubility experiment, showing 100% fully water soluble with no precipitation effect
ihumate brand potassium humate granules, displayed in a bowl, granules black bright and full
ihumate potassium humate granules front view, showing its regular round shape
ihumate various specifications packaging, export-grade potassium humate granules
ihumate potassium humate granules particle size comparison chart, with ruler marking, uniform particle size
ihumate potassium humate granules water solubility experiment, showing 100% fully water soluble with no precipitation effect

Potassium Humate Granules

  • Appearance: 2-4mm Granules
  • Water Solubility: > 99%
  • Humic Acid: > 65%
  • Fulvic Acid: > 5%
  • Potassium Oxide: > 10%
  • pH: 9-10
Related Products
( Customer Reviews)

Potassium Humate Granules (HUWIN 99)

High-Content Humic Acid + 99% Water Solubility + 2-4mm Granules: Cost-Effective Soil Amendment and Potassium Fertilizer for Large-Scale Farming

Scientific combination of humic acid (>65%, core advantage), fulvic acid (>5%), and potassium oxide (>10%), featuring 99% high water solubility and 2-4mm granule form. This is not a simple ingredient stacking, but a deep synergy of "high-activity soil amendment + efficient potassium supplement + large-scale adaptation", based on pH 9-10 alkaline characteristics, balancing high cost-performance with microbial compatibility, suitable for various crops and acidic/saline-alkali soils, making it the preferred organic fertilizer additive for large-scale farmland cultivation.

1. Mutual Empowerment: Enhanced Activity and Nutrient Balance The core advantage of humic acid >65% is highlighted, which can chelate nitrogen, phosphorus, potassium and micronutrients, regulate nutrient forms, promote activation of inert elements and crop absorption, while reducing nutrient loss and maintaining nutritional balance; fulvic acid retains native biological activity, assisting root promotion and stress resistance, potassium oxide precisely supplements potassium sources; 99% high water solubility combined with 2-4mm granules dissolves quickly without residue, balancing rapid absorption with large-scale application convenience, suitable for microbial fertilizer compounding to synergistically improve fertilizer efficiency.

2. Soil Amendment: Full-Domain Optimization and Large-Scale Adaptation With stable pH 9-10, the alkaline product can specifically neutralize soil acidification, relieve saline-alkali hazards, and improve soil physical and chemical properties; high-content humic acid acts as a natural cementing agent, promoting soil aggregate structure formation, enriching soil organic matter, enhancing air permeability and water-nutrient retention capacity, and relieving compaction. 2-4mm granules have moderate particle size, distribute evenly after broadcasting without local accumulation, require no fine operation, and are suitable for large-area farmland large-scale application.

3. Synergistic Root Promotion: Building a Strong Growth Foundation Fulvic acid's biological activity can stimulate crop root growth, combined with high-content humic acid to optimize rhizosphere microecology, creating a suitable environment for root development; potassium oxide strengthens root vitality and reduces premature aging, 99% high water solubility characteristic allows nutrients to quickly penetrate the rhizosphere, the three synergistically help crops form robust root systems in adverse soils, improving water and nutrient absorption capacity, meeting the seedling strengthening needs of large-scale cultivation.

4. Stress Resistance Enhancement: Stabilizing Large-Scale Production The synergistic effect of high-content humic acid and fulvic acid regulates crop metabolism, significantly improving crop drought, salt, cold, and disease resistance, reducing yield losses caused by stress, and ensuring production stability in large-scale cultivation; granule form facilitates field storage, transportation, and mechanical application, adapting to large-scale cultivation scenarios in different regions and soil conditions, reducing management costs.

5. Quality and Efficiency: High Cost-Performance Adapted to Mass Production 99% high water solubility characteristic has no residue and high absorption efficiency, high-content active ingredients can achieve "low dosage with high effect", greatly improving cost-performance, meeting the cost control needs of large-scale cultivation; 2-4mm granules are not easy to dust, convenient for precise quantity control, potassium oxide can strengthen crop stem toughness and improve fruit quality, high-content humic acid continuously improves soil, long-term application can reduce fertilizer usage, balancing quality improvement and ecological benefits, suitable for organic fertilizer and biostimulant compounding.

Expert Advice: Suitable for all crops throughout their growth cycle, especially for large-scale farmland cultivation, acidic soil improvement, and saline-alkali land treatment. For base application, mechanically and uniformly broadcast and till; for flooding application, dissolve in advance. Combining with microbial fertilizers can enhance microbial efficacy, further improving soil fertility and crop yield, achieving reduction and efficiency increase.

Potassium Humate Granules Specifications

Technical ParametersDetailed SpecsTesting MethodsReference Standards
Appearance2-4mm Granules--
Water Solubility> 99%Weight MethodGB/T 20913
Humic Acid> 65%Dry BasisGB/T 11957
Fulvic Acid> 5%Dry BasisNY/T 3161-2017
Potassium Oxide> 10%Flame PhotometryGB/T 8574
pH9-10PotentiometryNY/T 1973-2010

Potassium Humate 99 Granules - Introduction Video

  • 2-4MM Sun-Dried Granules
  • Black and Bright
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Potassium Humate 99 Granules - Introduction Video

  • 100% Fully Water Soluble
  • No Residue No Precipitation
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COA, TDS, MSDS & HM Test Reports

Certificate of Analysis (COA)

Certificate of Analysis: Potassium Humate Granules

Technical Data Sheet (TDS)

TDS: Potassium Humate Granules

Safety Data Sheet (MSDS)

MSDS: Potassium Humate Granules

Heavy Metal Test Report

Heavy Metal Test Report: Potassium Humate Granules

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Frequently Asked Questions

Ihumate FAQ: Sourcing, organic certification, logistics, and customization.
Apply for Ihumate Free Samples: Global shipping for lab compliance testing.
1

What unique effects can humic acid >65% as the core advantage bring?

Humic acid >65% high content is the core competitiveness, which can efficiently enrich soil organic matter, promote aggregate structure formation, strengthen soil water-nutrient retention capacity; at the same time, it can chelate various nutrients, activate inert elements, regulate nutritional balance, reduce nutrient loss, improve fertilizer utilization rate, also optimize rhizosphere microecology and enhance microbial compatibility, combined with 99% water solubility and 2-4mm granule form, balancing soil improvement, fertilizer supplementation functions and large-scale application convenience, cost-performance far exceeding conventional products.
2

Are you a trading company or a manufacturer?

We are a professional manufacturing enterprise. Our modern factory is located in Huozhou, Linfen, Shanxi, China. With an annual capacity of 500,000 tons, we invite global partners to visit our facility.
3

How do you perform quality control?

4

Do you provide samples?

5

What are the payment terms?

6

How can I track my shipment after payment?

7

What is the Minimum Order Quantity (MOQ)?

8

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9

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Application & Dosage: Potassium Humate Granules

Suitable for various crops and low-fertility, compacted soils, can efficiently improve soil structure and enhance fertilizer utilization rate.

Fertilizer Manufacturing and Mixing

  • Granular Fertilizers:
    Easy to blend with granular NPK and compound fertilizers to improve fertilizer utilization rate.
  • Liquid Fertilizers:
    Mixes evenly with various liquid fertilizers, helping nutrients be quickly absorbed by crops.
  • Organic and Biological Fertilizers:
    Promotes beneficial microorganism reproduction in biological fertilizers, enhancing their activity and stress resistance.

Drip Irrigation and Hydroponics

  • Drip Irrigation Systems:
    Easily dissolves in drip irrigation systems, ensuring efficient nutrient delivery to roots.
  • Hydroponics:
    Suitable for hydroponic and greenhouse cultivation.

Application Ratio Scheme

Crop NameGrowth StageApplication Ratio
RiceSeedling Stage3-5 Kg/hectare
Pre-budding Stage3-5 Kg/hectare
Grain Filling Stage3-5 Kg/hectare
Sweet Corn/CottonGrowth Stage3-5 Kg/hectare
Wheat/BarleyJointing Stage3-5 Kg/hectare
PineappleFruit Expansion Stage4-6 Kg/hectare
Citrus/PearGermination Stage5-8 Kg/hectare
Fruit Expansion Stage6-10 Kg/hectare
BananaVegetative Growth Stage5-8 Kg/hectare
GrapeBefore and After Flowering4-6 Kg/hectare
StrawberryPlanting Stage3-5 Kg/hectare
Cucumber/EggplantInitial Flowering Stage4-6 Kg/hectare
Continuous Harvesting Stage4-6 Kg/hectare
Romaine Lettuce/LettuceFull Growth Stage3-5 Kg/hectare
PotatoTuber Formation Stage5-8 Kg/hectare
Sweet PotatoTuber Expansion Stage5-8 Kg/hectare

Product Advantages: Potassium Humate Granules

Achieves multi-value soil improvement, root activation, and nutrient efficiency enhancement, making it a high-quality biostimulant soil conditioner.

1

Effective Soil Amendment, Soil Activation

Weak alkalinity can quickly neutralize acidic soils and regulate soil pH balance; humic acid promotes soil aggregate structure formation, breaks compaction, enhances soil air permeability, water retention and fertilizer retention, activates soil microbial activity.

2

Synergistic Nutrients, Slow-Release Efficiency

Fulvic acid promotes rapid nutrient absorption, potassium oxide supplements water-soluble potassium nutrition, the two work synergistically with humic acid.

3

Enhanced Stress Resistance

Fulvic acid can induce crops to produce stress proteins, help cope with stresses, improve crop stress resistance.

4

Green and Safe, Sustainable Development

Mineral natural ingredients, no chemical additives, high water solubility can naturally degrade, will not pollute soil and water sources.

Certifications: Potassium Humate Granules

Ihumate is backed by globally recognized certifications.

  • 🏅 OMRI Listed – Approved for organic use (USDA/NOP standards)
  • 🏅 CERES Certified – High-standard organic inputs for sustainable agriculture
  • ✔ Excellent international production process with full batch traceability
  • ✔ Meeting the strict demands of global distributors and formulators
Ihumate OMRI certificate proving compliance with USDA/NOP organic standards.
Ihumate Potassium Humate CERES organic certificate for EU and NOP standards.
Ihumate Potassium Fulvate CERES organic certificate ensuring global export quality.
Ihumate Mineral Humic Acid CERES organic certificate for high-end agriculture.
Ihumate Mineral Fulvic Acid CERES organic certificate for EU and NOP compliance.
Ihumate Sodium Humate CERES certificate for aquaculture, feed, and industrial use.
Ihumate Seaweed Extract CERES organic certificate, rich in natural hormones.

Ihumate Global Exhibition Videos

We showcase our Humic Acid, Seaweed, Liquid Fertilizer, and Bio-control series globally.
Join us at our 2026 exhibitions:
Event: Shanghai CAC (Fshow)
Booth: 12G05
Date: March 17-19, 2026
Address: No. 333 Songze Avenue, Qingpu District, Shanghai
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